When using a normal screen (4:3) and projecting 16:9 image

 

Picture (Screen) size

 

Projection distance [L]

Distance from the lens center to

χ

 

Width

 

Height

Minimum [L1]

Maximum [L2]

the bottom of the image [H]

Diag. [ ]

 

 

 

300￿ (762 cm)

 

240￿ (610 cm)

 

180￿ (457 cm)

32￿ 0￿ (9.8 m)

37￿ 0￿

(11.3 m)

￿34 31/32￿ (￿89 cm)

270￿ (686 cm)

 

216￿ (549 cm)

 

162￿ (411 cm)

28￿ 9￿ (8.8 m)

33￿ 4￿

(10.2 m)

￿31 15/32￿ (￿80 cm)

250￿ (635 cm)

 

200￿ (508 cm)

 

150￿ (381 cm)

26￿ 8￿ (8.1 m)

30￿ 10￿ (9.4 m)

￿29 9/64￿ (￿74 cm)

200￿ (508 cm)

 

160￿ (406 cm)

 

120￿ (305 cm)

21￿ 4￿ (6.5 m)

24￿ 8￿

(7.5 m)

￿23 5/16￿ (￿59 cm)

150￿ (381 cm)

 

120￿ (305 cm)

 

90￿ (229 cm)

16￿ 0￿ (4.9 m)

18￿ 6￿

(5.6 m)

￿17 31/64￿ (￿44 cm)

100￿ (254 cm)

 

80￿ (203 cm)

 

60￿ (152 cm)

10￿ 8￿ (3.3 m)

12￿ 4￿

(3.8 m)

￿11 21/32￿ (￿30 cm)

80￿ (203 cm)

 

64￿ (163 cm)

 

48￿ (122 cm)

8￿ 6￿ (2.6 m)

9￿ 10￿

(3.0 m)

￿9 21/64￿ (￿24 cm)

70￿ (178 cm)

 

56￿ (142 cm)

 

42￿ (107 cm)

7￿ 6￿ (2.3 m)

8￿ 8￿

(2.6 m)

￿8 5/32￿ (￿21 cm)

60￿ (152 cm)

 

48￿ (122 cm)

 

36￿ (91 cm)

6￿ 5￿ (2.0 m)

7￿ 5￿

(2.3 m)

￿7￿ (￿18 cm)

 

 

 

 

 

 

 

 

 

40￿ (102 cm)

 

32￿ (81 cm)

 

24￿ (61 cm)

4￿ 3￿ (1.3 m)

4￿ 11￿

(1.5 m)

￿4 21/32￿ (￿12 cm)

χ: Picture size (diag.) (in/cm)

The formula for picture size and projection distance

L: Projection distance (ft/m)

[Feet/inches]

[m/cm]

L1: Minimum projection distance (ft/m)

L1

(ft) = 0.0325χ / 0.3048

L1

(m) = 0.0325χ

L2: Maximum projection distance (ft/m)

L2

(ft) = 0.03761χ / 0.3048

L2

(m) = 0.03761χ

H: Distance from the lens center to the bottom of the image (in/cm)

H (in) = - 0.29601χ / 2.54

H (cm) = - 0.29601χ

Note

•Refer to page 18 concerning “Projection distance [L]” and “Distance from the lens center to the bottom of the image [H]”.

•There are some errors in the values in the diagrams above.

•Values with a minus (-) sign indicate the distance from the lens center below the bottom of the image.

Setup

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